I am currently looking at a deal on a used band saw. It is a 3 phase 380V saw with a 850W motor (1.1 hp?), and the blade welder is rated at 2.4 kVA.
I have single-phase 220V power, but the increase in utility charges for 3 phase service does not seem worth it.
Now I have some questions:
1. Can I just use a 2.2 kW VFD (seems to be a popular size) to power the motor and blade welder? Will a blade welder be a load that is compatible with a VFD that is nominally intended to drive inductive loads? Fortunately it is a metal saw, so I will not have to use the VFD to slow the motor or anything.
2. Maybe I can run the motor on single phase (will only really see when I have the saw in hand), and I don't know much about 3 phase motors. Or maybe I can install a single-phase motor, which seems a little cheaper than the VFD. So what do the blade welder circuits look like? Just a transformer? Maybe they only use a single-phase step- down transformer? That way I can convert the whole saw to single phase?
Since I have never seen one of these in person, any insights or suggestions would be greatly appreciated.
I have single-phase 220V power, but the increase in utility charges for 3 phase service does not seem worth it.
Now I have some questions:
1. Can I just use a 2.2 kW VFD (seems to be a popular size) to power the motor and blade welder? Will a blade welder be a load that is compatible with a VFD that is nominally intended to drive inductive loads? Fortunately it is a metal saw, so I will not have to use the VFD to slow the motor or anything.
2. Maybe I can run the motor on single phase (will only really see when I have the saw in hand), and I don't know much about 3 phase motors. Or maybe I can install a single-phase motor, which seems a little cheaper than the VFD. So what do the blade welder circuits look like? Just a transformer? Maybe they only use a single-phase step- down transformer? That way I can convert the whole saw to single phase?
Since I have never seen one of these in person, any insights or suggestions would be greatly appreciated.